Spats McGee said:If you feel like high, straight crowns and wide brims are too formal looking, don't forget to factor the ribbon into the equation.
The way I read it, seed was not talking about whether the hat's dressy or not, per se, but more about a balance of proportion between the extravagant dimensions of the hat vs. rest of apparel. Just to start with, a dress jacket commonly pads out the shoulders, but more in general when you crank up the dress level I suppose you give yourself more room for stylistic extravagance on top, even a tall, straight crown.